The MySQL server listens on one or more network sockets for TCP/IP connections. Each socket is bound to one address, but it is possible for an address to map onto multiple network interfaces.
--bind-address option at
server startup to specify the TCP/IP connections that a server
instance accepts. As of MySQL 8.0.13, you can specify multiple
values for this option, including any combination of IPv6
addresses, IPv4 addresses, and host names that resolve to IPv6
or IPv4 addresses. Alternatively, you can specify one of the
wildcard address formats that permit listening on multiple
network interfaces. A value of *, which is the default, or a
::, permit both IPv4 and IPv6
connections on all server host IPv4 and IPv6 interfaces. For
more information, see the
--bind-address description in
Section 5.1.7, “Server Command Options”.